The people who are building stuff to the standards are having the standards imposed upon them by the rest of society. They (and their customers, etc.) bear the cost of complying with the regulation, and society benefits.If society wants to make this imposition, it needs to foot the bill for letting people know what the imposition is.
In addition, besides the people who build stuff, other people living in the same society have an interest in knowing what the laws are. One reason would be so that they can make decisions about whether to support legislators who choose to write these standards into the laws that regulate the economy in which they live.
One way or another, the government that incorporates these standards into laws should be obligated to make the standards available to the public.
